摘要
综合利用钻井岩心和测井曲线资料,对准东煤田西部下侏罗统八道湾组层序地层格架及沉积体系空间展布及煤的聚集规律进行研究。研究区八道湾组主要发育冲积扇扇三角洲、辫状河三角洲、曲流河三角洲和湖泊等沉积体系类型,物源来自北部卡拉麦里山。八道湾组地层可划分为2个三级层序和6个体系域,每个三级层序发育较完整的低位体系域、湖扩体系域和高位体系域,煤层主要发育于湖扩体系域早中期。
Using the drilling core and well logs data,the paper studies the sequence stratigraphic framework,spatial distribution of sedimentary lhcies and the regular of coal accumulation of Badaowan formation in the western part of Zhundong coalfield.The depositional system type consist of mainly alluvial fan-fan delta,braided river delta,meandering river delta and lake in the study area and the provenance of sediments is fiom the Kalamaili mountain.Badaowan Formation can be divided into two third-order sequences,six system tracts.Each third-order sequence has complete LST, EST, t lST. The main coal seams are developed in the early-middle of EST.
出处
《新疆地质》
CAS
CSCD
2016年第4期541-545,共5页
Xinjiang Geology
关键词
准东煤田
八道湾组
层序地层
聚煤规律
Zhundong coalfield：Badaowan Formation：Sequence stratigraphy：Coal accumulation
